.top_navigation{
  padding: 0 30px;
  display: flex;
  height: 90px;
  line-height: 90px;
  font-size: 32px;
  .right_arrow,
  .left_menu{
    margin: auto 0;
    width: 32px;
    height: 30px;
  }
  .con_tit{
    flex: 1;
    text-align: center;
  }
}